pls help! if x is positive and x^2 + x=50, then x is a number between
E. 6 and 7
F. 7 and 8
G.8 and 9
H.9 and 10

Answer:

A is 55 ÷2=27.5? because 1 is 5 5 so to get 1/2 you will half the first one

Answer:

its I my sister said

Step-by-step explanation:

Answer:

A. 2/36

Step-by-step explanation:

Answer: 45

Step-by-step explanation: because 60/4 = 15 and 15 x 3 = 45, Ryan makes $45

I hope this helps

Answer:

B

Step-by-step explanation:

the table represents the equation y= 35x

x = number of hours

Answer:

Here is your answer

Answer:

-7

Step-by-step explanation:

To solve this equation, plug your x value in and simplify.

-2x + 3

-2(5) + 3

-10 + 3

-7

Answer:

Step-by-step explanation:

60-7.5

=52.5

Answer:

52.5 inches

Step-by-step explanation:

If someone is taller than someone, then you would subtract the to heights. Which in this case it would be 60-7.5, and then you would answer it with a lable. So the answer is 52.5 inches.

Answer:

160

Step-by-step explanation:

Answer:

u can use desmos it will help a lot

Step-by-step explanation:

Answer:

9.75

Step-by-step explanation:

Answer: multiply 8 on all x number of books read

Step-by-step explanation:

1 is 8 because 8 × 1 is 8

2 is 16 because 8 × 2 is 16

3 is 24 because 8 × 3 is 24

4 is 32 because 8 × 4 is 32

5 is 40 because 8 × 5 is 40

6 is 48 because 8 × 6 is 48

7 is 56 because 8 × 7 is 56

8 is 64 because 8 × 8 is 64

9 is 72 because 8 × 9 is 72

10 is 80 because 8 × 10 is 80

1. If Stephanie had read fewer than 2 books, she would have earned less than 16 points.

2. Stephanie read 9 books to earn 72 points.

The equation is defined as mathematical statements that have a minimum of two terms containing variables or numbers that are equal.

1. To determine the number of books Stephanie read, we can plug in the number of points she earned, which is 72, into the equation y = 8x and solve for x:

72 = 8x

Dividing both sides by 8, we get:

x = 9

So, Stephanie read 9 books to earn 72 points.

If Stephanie had read fewer than 2 books, she would have earned less than 16 points (since 8 points per book multiplied by 2 books is 16 points).

Similarly,

If Stephanie had read between 2 and 5 books, she would have earned between 16 and 40 points.

If Stephanie had read between 5 and 6 books, she would have earned between 40 and 48 points.

If Stephanie had read more than 7 books, she would have earned more than 56 points.

2. The given equation is as follows:

y = 8x

Substitute the value of y = 72 in the equation,

72 = 8x

Dividing both sides by 8, we get:

x = 9

Therefore, Stephanie read 9 books to earn 72 points.

Learn more about the equation here:

brainly.com/question/10413253

#SPJ2

Answer:

yay free points also it is d lol

Step-by-step explanation:

Answer:

20 * 1.4 = 28

Step-by-step explanation:

Answer:

28

Step-by-step explanation:

Answer:

$318 after 2 years

$477 after 3 years

Step-by-step explanation:

The formula for simple interest is i=p*r*t.

p=$2650

r=6% or .06

t=2 and 3

You have to multiply everything together to get the intrest so the balance after 2 years is $318 and the balance after 3 years is $477.

Answer:

30 miles per hour downstream

20 miles per hour upstream

Step-by-step explanation:

divide 4 by 120 to get the rate downstream

divide 6 by 120 to get the rate upstream

Hope this helps :(

Answer: Slope     =  3.200/2.000 =  1.600

Geometric figure: Straight Line

 Slope = 3.200/2.000 = 1.600

 x-intercept = 3/8 = 0.37500

 y-intercept = -3/5 = -0.6000

Step-by-step explanation:  Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :

                    y-(8/5*x-3/5)=0

STEP

1

:

           3

Simplify   —

           5

Equation at the end of step

1

:

        8         3

 y -  ((— • x) -  —)  = 0

        5         5

STEP

2

:

           8

Simplify   —

           5

Equation at the end of step

2

:

        8         3

 y -  ((— • x) -  —)  = 0

        5         5

STEP

3

:

Adding fractions which have a common denominator :

3.1       Adding fractions which have a common denominator

Combine the numerators together, put the sum or difference over the common denominator then reduce to lowest terms if possible:

8x - (3)     8x - 3

————————  =  ——————

   5           5  

Equation at the end of step

3

:

      (8x - 3)

 y -  ————————  = 0

         5    

STEP

4

:

Rewriting the whole as an Equivalent Fraction :

4.1   Subtracting a fraction from a whole

Rewrite the whole as a fraction using  5  as the denominator :

         y     y • 5

    y =  —  =  —————

         1       5  

Equivalent fraction : The fraction thus generated looks different but has the same value as the whole

Common denominator : The equivalent fraction and the other fraction involved in the calculation share the same denominator

Adding fractions that have a common denominator :

4.2       Adding up the two equivalent fractions

Add the two equivalent fractions which now have a common denominator

Combine the numerators together, put the sum or difference over the common denominator then reduce to lowest terms if possible:

y • 5 - ((8x-3))     5y - 8x + 3

————————————————  =  ———————————

       5                  5    

Equation at the end of step

4

:

 5y - 8x + 3

 ———————————  = 0

      5    

STEP

5

:

When a fraction equals zero :

5.1    When a fraction equals zero ...

Where a fraction equals zero, its numerator, the part which is above the fraction line, must equal zero.

Now,to get rid of the denominator, Tiger multiplys both sides of the equation by the denominator.

Here's how:

 5y-8x+3

 ——————— • 5 = 0 • 5

    5  

Now, on the left hand side, the  5  cancels out the denominator, while, on the right hand side, zero times anything is still zero.

The equation now takes the shape :

  5y-8x+3  = 0

Equation of a Straight Line

5.2     Solve   5y-8x+3  = 0

Tiger recognizes that we have here an equation of a straight line. Such an equation is usually written y=mx+b ("y=mx+c" in the UK).

"y=mx+b" is the formula of a straight line drawn on Cartesian coordinate system in which "y" is the vertical axis and "x" the horizontal axis.

In this formula :

y tells us how far up the line goes

x tells us how far along

m is the Slope or Gradient i.e. how steep the line is

b is the Y-intercept i.e. where the line crosses the Y axis

The X and Y intercepts and the Slope are called the line properties. We shall now graph the line  5y-8x+3  = 0 and calculate its properties

Graph of a Straight Line :

Calculate the Y-Intercept :

Notice that when x = 0 the value of y is -3/5 so this line "cuts" the y axis at y=-0.60000

 y-intercept = -3/5  = -0.60000

Calculate the X-Intercept :

When y = 0 the value of x is 3/8 Our line therefore "cuts" the x axis at x= 0.37500

 x-intercept = 3/8  =  0.37500

Calculate the Slope :

Slope is defined as the change in y divided by the change in x. We note that for x=0, the value of y is -0.600 and for x=2.000, the value of y is 2.600. So, for a change of 2.000 in x (The change in x is sometimes referred to as "RUN") we get a change of 2.600 - (-0.600) = 3.200 in y. (The change in y is sometimes referred to as "RISE" and the Slope is m = RISE / R

Answer: (-3; -11)

Step-by-step explanation:

[tex]\left \bigg \{ {\big{y=7x+10} \atop\big {y=-4x-23}} \right.\\\\7x+10=-4x-23\\7x+10-10=-4x-23-10\\7x=-4x-33\\7x+4x=-4x-33+4x\\11x=-33\\11x \div 11=-33 \div 11\\x=-3\\\\y=7x+10\\y=7 \times (-3)+10=-21+10=-11[/tex]

The most she can spend on each of them is 40

Answer:

30

Step-by-step explanation:

illl explqain if you need it

Answer:

its d

Step-by-step explanation:

i did the work

Answer:

5 feet

Step-by-step explanation:

Answer:

The exact same as subtracting.

Example

5 + (-2) = 3

Answer:

To add a negative number means to subtract

Step-by-step explanation:

Answer:y =

40 mi

Step-by-step explanation:

y = -.75(85) + 103.75

y = -63.75 + 103.75

y = 40 mi from home after 85 min

Answer:

I dont know if you want your answer in Exact form or Mixed Number form so I put both.

Starting Box:  [tex]\frac{6}{3}[/tex] or 2

Box 1:  [tex]\frac{8}{3}[/tex] or [tex]2\frac{2}{3}[/tex]

Box 2: [tex]\frac{10}{3}[/tex] or [tex]3\frac{1}{3}[/tex]

Box 3: [tex]\frac{12}{3}[/tex] or 4

Box 4: [tex]\frac{14}{3}[/tex] or [tex]4\frac{2}{3}[/tex]

Just keep adding  [tex]\frac{2}{3}[/tex] from the last number

like:

[tex]\frac{14}{3} + \frac{2}{3} =[/tex]

Answer:

-64[tex]y^{2}[/tex]

Step-by-step explanation:

You first simplify (-4)^3, then add the exponents of y, which is [tex]y^{2}[/tex].

Answer:

−64y2

Step-by-step explanation:

A. sales tax limits ??